public inbox for devel@edk2.groups.io
 help / color / mirror / Atom feed
From: "Laszlo Ersek" <lersek@redhat.com>
To: Wenyi Xie <xiewenyi2@huawei.com>,
	devel@edk2.groups.io, jiewen.yao@intel.com,
	jian.j.wang@intel.com
Cc: songdongkuang@huawei.com
Subject: Re: [PATCH EDK2 v1 1/1] SecurityPkg/FvReportPei: remove redundant sizeof
Date: Tue, 13 Apr 2021 15:16:39 +0200	[thread overview]
Message-ID: <c274b9e6-3808-52ca-5452-59735a49bb42@redhat.com> (raw)
In-Reply-To: <1618317217-112644-2-git-send-email-xiewenyi2@huawei.com>

On 04/13/21 14:33, Wenyi Xie wrote:
> REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3333
> 
> In function InstallPreHashFvPpi, when calculatuing the size

(1) s/calculatuing/calculating/

(2) I suggest remarking, in the commit message, that this bug does not
lead to buffer overflow, given that "sizeof (HASH_INFO)" is 4, whereas
"sizeof (sizeof (HASH_INFO))" is 4 or 8.

> of struct HASH_INFO,sizeof is used twice.
> 
> Cc: Jiewen Yao <jiewen.yao@intel.com>
> Cc: Jian J Wang <jian.j.wang@intel.com>
> Cc: Laszlo Ersek <lersek@redhat.com>
> Signed-off-by: Wenyi Xie <xiewenyi2@huawei.com>
> ---
>  SecurityPkg/FvReportPei/FvReportPei.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/SecurityPkg/FvReportPei/FvReportPei.c b/SecurityPkg/FvReportPei/FvReportPei.c
> index d709760ea3ce..e82413e090c0 100644
> --- a/SecurityPkg/FvReportPei/FvReportPei.c
> +++ b/SecurityPkg/FvReportPei/FvReportPei.c
> @@ -67,7 +67,7 @@ InstallPreHashFvPpi (
>    HASH_INFO                                         *HashInfo;
>  
>    PpiSize = sizeof (EDKII_PEI_FIRMWARE_VOLUME_INFO_PREHASHED_FV_PPI)
> -            + sizeof (sizeof (HASH_INFO))
> +            + sizeof (HASH_INFO)
>              + HashSize;
>  
>    PreHashedFvPpi = AllocatePool (PpiSize);
> 

>From my perspective:

Reviewed-by: Laszlo Ersek <lersek@redhat.com>


      reply	other threads:[~2021-04-13 13:16 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-13 12:33 [PATCH EDK2 v1 0/1] SecurityPkg/FvReportPei: remove redundant sizeof wenyi,xie
2021-04-13 12:33 ` [PATCH EDK2 v1 1/1] " wenyi,xie
2021-04-13 13:16   ` Laszlo Ersek [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-list from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=c274b9e6-3808-52ca-5452-59735a49bb42@redhat.com \
    --to=devel@edk2.groups.io \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox